Abstract
The results of an experimental study of power losses in rolling bearings under various lubrication conditions are presented. Comparative tests of all-metal bearings and similar bearings with rolling elements made of silicon nitride (hybrid bearings) were carried out with jet lubrication and lubrication with an air-oil mixture. For the experiments, a specially designed setup was used, which makes it possible to study bearings at different levels of lubricant consumption and loads. The change in the moment of resistance to rotation and the reduced coefficient of friction in bearings are analyzed. The dependences of these parameters on the shaft speed are presented in graphical form. It has been established that bearings with ceramic balls in the entire studied range behave qualitatively and quantitatively in approximately the same way as with steel ones. The use of lubrication with an air-oil mixture makes it possible to reduce losses in the bearing by more than 2 times with a slight increase in the bearing temperature in the absence of external heating. Hydraulic losses in the studied units are on average 2–3 times higher than the losses associated with the friction of the rolling elements on the bearing parts surrounding them.
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Dotsenko, V., Gnytko, O., Koveza, Y., Kuznetsova, A. (2023). Experimental Determination of Power Losses in Steel and Hybrid Rolling Bearings. In: Cioboată, D.D. (eds) International Conference on Reliable Systems Engineering (ICoRSE) - 2023. ICoRSE 2023. Lecture Notes in Networks and Systems, vol 762. Springer, Cham. https://doi.org/10.1007/978-3-031-40628-7_13
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